port: namespace align.h with BT_ prefix

[babeltrace.git] / src / common / align.h

diff --git a/src/common/align.h b/src/common/align.h
index d27b5b5368cc8b4079cdb7be1a46fb8a3c0d8898..a9c88de8ed9e5d9cf47bdbb9b5e4cdb7ed588690 100644 (file)
--- a/src/common/align.h
+++ b/src/common/align.h
@@ -1,49 +1,33 @@
-#ifndef _BABELTRACE_ALIGN_H
-#define _BABELTRACE_ALIGN_H
-
 /*
- * Copyright 2010 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
+ * SPDX-License-Identifier: MIT
  *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
+ * Copyright 2010 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  */
 
+#ifndef _BABELTRACE_ALIGN_H
+#define _BABELTRACE_ALIGN_H
+
 #include "compat/compiler.h"
 #include "compat/limits.h"
 
-#define ALIGN(x, a)            __ALIGN_MASK(x, (typeof(x))(a) - 1)
-#define __ALIGN_MASK(x, mask)  (((x) + (mask)) & ~(mask))
-#define PTR_ALIGN(p, a)                ((typeof(p)) ALIGN((unsigned long) (p), a))
-#define ALIGN_FLOOR(x, a)      __ALIGN_FLOOR_MASK(x, (typeof(x)) (a) - 1)
-#define __ALIGN_FLOOR_MASK(x, mask)    ((x) & ~(mask))
-#define PTR_ALIGN_FLOOR(p, a) \
-                       ((typeof(p)) ALIGN_FLOOR((unsigned long) (p), a))
-#define IS_ALIGNED(x, a)       (((x) & ((typeof(x)) (a) - 1)) == 0)
+#define BT_ALIGN(x, a)         __BT_ALIGN_MASK(x, (typeof(x))(a) - 1)
+#define __BT_ALIGN_MASK(x, mask)       (((x) + (mask)) & ~(mask))
+#define BT_PTR_ALIGN(p, a)             ((typeof(p)) BT_ALIGN((unsigned long) (p), a))
+#define BT_ALIGN_FLOOR(x, a)   __BT_ALIGN_FLOOR_MASK(x, (typeof(x)) (a) - 1)
+#define __BT_ALIGN_FLOOR_MASK(x, mask) ((x) & ~(mask))
+#define BT_PTR_ALIGN_FLOOR(p, a) \
+                       ((typeof(p)) BT_ALIGN_FLOOR((unsigned long) (p), a))
+#define BT_IS_ALIGNED(x, a)    (((x) & ((typeof(x)) (a) - 1)) == 0)
 
 /*
  * Align pointer on natural object alignment.
  */
-#define object_align(obj)      PTR_ALIGN(obj, __alignof__(*(obj)))
-#define object_align_floor(obj)        PTR_ALIGN_FLOOR(obj, __alignof__(*(obj)))
+#define bt_object_align(obj)           BT_PTR_ALIGN(obj, __alignof__(*(obj)))
+#define bt_object_align_floor(obj)     BT_PTR_ALIGN_FLOOR(obj, __alignof__(*(obj)))
 
 /**
- * offset_align - Calculate the offset needed to align an object on its natural
- *                alignment towards higher addresses.
+ * bt_offset_align - Calculate the offset needed to align an object on its
+ *                   natural alignment towards higher addresses.
  * @align_drift:  object offset from an "alignment"-aligned address.
  * @alignment:    natural object alignment. Must be non-zero, power of 2.
  *
@@ -58,14 +42,14 @@
        })
 
 /**
- * offset_align_floor - Calculate the offset needed to align an object
- *                      on its natural alignment towards lower addresses.
+ * bt_offset_align_floor - Calculate the offset needed to align an object
+ *                         on its natural alignment towards lower addresses.
  * @align_drift:  object offset from an "alignment"-aligned address.
  * @alignment:    natural object alignment. Must be non-zero, power of 2.
  *
  * Returns the offset that must be substracted to align towards lower addresses.
  */
-#define offset_align_floor(align_drift, alignment)                            \
+#define bt_offset_align_floor(align_drift, alignment)                         \
        ({                                                                     \
                MAYBE_BUILD_BUG_ON((alignment) == 0                            \
                                   || ((alignment) & ((alignment) - 1)));      \